The 1978 recording debut from reformed avant-garde composer and eventual ambient forerunner Harold Budd consists of four chamber works (written between 1972 and 1975) that use varying combinations of harp, mallet instruments, piano, saxophone, and female or male vocals. Two years before his fateful first studio collaboration with Brian Eno (who produced this album), Budd was creating hypnotic music in an acoustic mode. All of the works herein–including "Two Rooms," whose latter half is an adaptation of John Coltrane's "After the Rain"–sustain a similarly dreamy vibe. An important credo for Budd was to make music as pretty as possible as an antidote to the noisy avant-garde he had escaped from. One cannot fault him for the lovely sounds he creates here, although fans familiar with his more cinematic works might be caught off-guard. Regardless, the pleasant Pavilion of Dreams provides insight into Budd's past, and it offers the same somniferous effect as a gentle lullaby, making it perfect for late-evening listening.

More offerings from Eno, Moebius, Roedelius, Plank, and Neumeier, Begegnungen II is the equivalent of its predecessor. The tracks on the compilation (recorded in 1976-1983) are an appealing mix of artsy electronic ambiance and progressive Krautrock. Eno's mechanical "Broken Head" stands out as the only vocal track - a dark, almost oppressive industrial tune not unlike early Gary Numan, but warmer. "Speed Display," originally recorded for Moebius, Plank, and Neumeier's Zero Set, is a fantastic showcase for Mani Neumeier's speed and endurance as a percussionist. He generates an incredible rhythmic groove, supplemented by sparkling synthesizer flourishes. Roedelius shines with two contributions to the set…

Brian Eno's second album collaboration with Dieter Moebius and Hans-Joachim Roedelius of Cluster consists of slow-moving instrumentals full of repeated synthesizer sound patterns and sustained guitar notes in the ambient style familiar from Eno's collaborations with Robert Fripp and albums of his own, such as Discreet Music. (One song, "Broken Head," features recited vocals by Eno, and on another, "The Belldog," he sings. On "Tzima N'Arki," he sings backwards.)

Finally bored with ambient music, a genre he pioneered in the 1970s, pop polymath Brian Eno emerged with Another Day on Earth, his first solo recording of "conventional" songs since Another Green World. From the rhythm track of opening song "This," the sound is unmistakable. A quirky hook covered in layers of atmosphere and a bouncy loop, it's a smart little tune with additional guitars by Leo Abrahams. Lyrically, Eno's process is poetic, employing not only his own strategies, but a computer generating words as well. At three-and-a-half minutes, it's a fine pop song, albeit one that would never get played on the radio. "And Then So Clear" is more evocative of Eno's work with Daniel Lanois, utilizing a very simple loop adorned with sparse guitars while keyboards pulse softly as a completely treated human voice paints a landscape both exterior and interior…

Ever the iconoclast, if there is one thing that Brian Eno has done with any degree of consistency throughout his varied career, it is presenting his art in an array of perpetually "out of the box" forums. All that changed – in a manner of speaking – with the release of two companion multi-disc compilations. Eno Box I: Instrumentals (1994) condenses his wordless creations, while Eno Box II: Vocals (1993) does the same for the rest of his major works on a similarly sized volume. Interestingly – and in his typically contrary fashion – this initial installment was actually issued last. Each of Eno Box I: Instrumentals' three CDs respectively concentrates on a specific facet of the artist's copious back catalog.

The audio companion to David Toop's excellent book advances the case he made, that Les Baxter, Aphex Twin, The Beach Boys, Herbie Hancock, King Tubby and My Bloody Valentine are all related by their effect on sound pioneering. A double-disc set, Ocean of Sound impresses not only with its incredible diversity of musical styles, but with how easily these artists work next to each other. The second disc includes consecutive contributions by Paul Schütze, the Velvet Undergound, Holger Czukay of Can, The Beach Boys, African Headcharge and Sun Ra. Besides illustrating Toop's point beautifully, the album is an excellent addition to the collection of any wide-ranging ambient fan.